Comparison between finite element solution and closed solution based on anti-plane shear model on bimetal laminate with delamination

In order to validate the superiority of anti-plane shear closed solution to bend closed solution, two different methods were used. By means of the principle of superposition, the problem of bimetal laminate with delamination was predigested to the additional displacements of the original objects subjected to additional shear loading along the delamination surfaces. Using the mode of anti-plane shear to get the closed solution of additional displacement of transverse shear loading slice, the closed solution of additional displacements mode of the bimetal laminate with rectangular delamination was obtained by the method of state decomposition and slice composition in which the slice loaded longitudinal shear was caused by the mode of bend.  The finite element model of bimetal laminate with symmetrical or asymmetrical delamination was established in ANSYS to get numerical solution. Contact element was used to simulate the asymmetric delamination surface. Finally, according to comparing closed solution with finite element solution, correctness of closed solutions and feasibility of numerical simulation model is proved, furthermore, according to taking shear into account the anti-plane shear closed solution is testified more accurate than the bend one.